

package com.hazelcast.client.impl.protocol.codec;

import com.hazelcast.client.impl.protocol.ClientMessage;
import com.hazelcast.client.impl.protocol.Generated;
import com.hazelcast.client.impl.protocol.codec.builtin.CodecUtil;
import com.hazelcast.client.impl.protocol.codec.custom.SchemaCodec;

import javax.annotation.Nullable;

import static com.hazelcast.client.impl.protocol.ClientMessage.*;
import static com.hazelcast.client.impl.protocol.codec.builtin.FixedSizeTypesCodec.*;

/*
 * This file is auto-generated by the Hazelcast Client Protocol Code Generator.
 * To change this file, edit the templates or the protocol
 * definitions on the https://github.com/hazelcast/hazelcast-client-protocol
 * and regenerate it.
 */

/**
 * Fetches a schema from the cluster with the given schemaId
 */
@SuppressWarnings("unused")
@Generated("2d744e3198523a6f6790ed6a386498e5")
public final class ClientFetchSchemaCodec {
    //hex: 0x001400
    public static final int REQUEST_MESSAGE_TYPE = 5120;
    //hex: 0x001401
    public static final int RESPONSE_MESSAGE_TYPE = 5121;
    private static final int REQUEST_SCHEMA_ID_FIELD_OFFSET = PARTITION_ID_FIELD_OFFSET + INT_SIZE_IN_BYTES;
    private static final int REQUEST_INITIAL_FRAME_SIZE = REQUEST_SCHEMA_ID_FIELD_OFFSET + LONG_SIZE_IN_BYTES;
    private static final int RESPONSE_INITIAL_FRAME_SIZE = RESPONSE_BACKUP_ACKS_FIELD_OFFSET + BYTE_SIZE_IN_BYTES;

    private ClientFetchSchemaCodec() {
    }

    public static ClientMessage encodeRequest(long schemaId) {
        ClientMessage clientMessage = ClientMessage.createForEncode();
        clientMessage.setRetryable(true);
        clientMessage.setOperationName("Client.FetchSchema");
        ClientMessage.Frame initialFrame = new ClientMessage.Frame(new byte[REQUEST_INITIAL_FRAME_SIZE], UNFRAGMENTED_MESSAGE);
        encodeInt(initialFrame.content, TYPE_FIELD_OFFSET, REQUEST_MESSAGE_TYPE);
        encodeInt(initialFrame.content, PARTITION_ID_FIELD_OFFSET, -1);
        encodeLong(initialFrame.content, REQUEST_SCHEMA_ID_FIELD_OFFSET, schemaId);
        clientMessage.add(initialFrame);
        return clientMessage;
    }

    /**
     * Id of the schema to be fetched
     */
    public static long decodeRequest(ClientMessage clientMessage) {
        ClientMessage.ForwardFrameIterator iterator = clientMessage.frameIterator();
        ClientMessage.Frame initialFrame = iterator.next();
        return decodeLong(initialFrame.content, REQUEST_SCHEMA_ID_FIELD_OFFSET);
    }

    public static ClientMessage encodeResponse(@Nullable com.hazelcast.internal.serialization.impl.compact.Schema schema) {
        ClientMessage clientMessage = ClientMessage.createForEncode();
        ClientMessage.Frame initialFrame = new ClientMessage.Frame(new byte[RESPONSE_INITIAL_FRAME_SIZE], UNFRAGMENTED_MESSAGE);
        encodeInt(initialFrame.content, TYPE_FIELD_OFFSET, RESPONSE_MESSAGE_TYPE);
        clientMessage.add(initialFrame);

        CodecUtil.encodeNullable(clientMessage, schema, SchemaCodec::encode);
        return clientMessage;
    }

    /**
     * schema with the given schema id fetched from the cluster
     */
    public static com.hazelcast.internal.serialization.impl.compact.Schema decodeResponse(ClientMessage clientMessage) {
        ClientMessage.ForwardFrameIterator iterator = clientMessage.frameIterator();
        //empty initial frame
        iterator.next();
        return CodecUtil.decodeNullable(iterator, SchemaCodec::decode);
    }
}
